Gauge Platinum

Finding Density and Volume and converting to cm?!?

I have some answers completed but i don’t know if they are right…

American 15-gauge wire has a diameter of 0.05707 in. Solid platinum has a density 21.45 g/cm^3 and liquid platinum has density of 18.91 g/cm^3 at 1772 degrees Celsius, the melting point. The price of [...]